Date of birth
Alefe Santos penned a two-year contract after a successful trial at the club.
The Brazilian-born midfielder began his career at Bristol Rovers, making 28 appearances for the Pirates before being snapped up by Sky Bet Championship outfit Derby County.
He made just one appearance for the Rams first-team but did feature in their under-23s' Checkatrade Trophy campaign last term.
Santos spent time on loan at Notts County and Eastleigh, and became Town's eighth summer signing of 2017.